<template>
  <div class="todo-header">
    <input
      type="text"
      placeholder="请输入你的任务名称，按回车键确认"
      @keyup.enter="addTodoHandle"
    />
  </div>
</template>

<script>
export default {
  name: "Header",
  props: ["addTodo", "todoList"],
  methods: {
    addTodoHandle(e) {
      const newTodo = e.target.value.trim();
      if (!newTodo) {
        alert("输入内容不能为空");
        return;
      }
      const result = this.todoList.find((item) => item.todo === newTodo);
      if (result) {
        alert("输入的内容已存在");
        return;
      }

      const newTodoItem = {
        id: Date.now(),
        todo: newTodo,
        isChecked: false,
      };
      this.addTodo(newTodoItem);

      e.target.value = null;
    },
  },
};
</script>

<style scoped>
/*header*/
.todo-header input {
  width: 560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075),
    0 0 8px rgba(82, 168, 236, 0.6);
}
</style>